/*
 * Copyright 2002-2012 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.aop.config;

import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.parsing.AbstractComponentDefinition;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;

/**
 * {@link org.springframework.beans.factory.parsing.ComponentDefinition}
 * implementation that holds a pointcut definition.
 *
 * @author Rob Harrop
 * @since 2.0
 */
public class PointcutComponentDefinition extends AbstractComponentDefinition {

    private final String pointcutBeanName;

    private final BeanDefinition pointcutDefinition;

    private final String description;


    public PointcutComponentDefinition(String pointcutBeanName, BeanDefinition pointcutDefinition, String expression) {
        Assert.notNull(pointcutBeanName, "Bean name must not be null");
        Assert.notNull(pointcutDefinition, "Pointcut definition must not be null");
        Assert.notNull(expression, "Expression must not be null");
        this.pointcutBeanName = pointcutBeanName;
        this.pointcutDefinition = pointcutDefinition;
        this.description = "Pointcut <name='" + pointcutBeanName + "', expression=[" + expression + "]>";
    }


    @Override
    public String getName() {
        return this.pointcutBeanName;
    }

    @Override
    public String getDescription() {
        return this.description;
    }

    @Override
    public BeanDefinition[] getBeanDefinitions() {
        return new BeanDefinition[]{this.pointcutDefinition};
    }

    @Override
    @Nullable
    public Object getSource() {
        return this.pointcutDefinition.getSource();
    }

}
